researchers say the reason for the change could be due to the tough economy over the past few years requiring more income for families. >> we get a first look at the new prim issue of "vogue" magazine with the first lady. look at her on the cover, and in the interview she opens up about life in the white house. she responds to critic who say she and the president do not socialize enough in washington. the first lady says that she likes to spend her free time with her daughters. however, the president does joke that he and the first lady might have to start hitting nightclubs now that their daughters are getting older. >> the first couple hit the dance floor do the secret service agents have to dance around them to recollect them? >> they pull a circle around them adancing with earpieces." >> and today is pi day and kids will be celebrates. >> celebrating sunshine, a lot of it with thick are high clouds and the high pressure is moving off to the east so it will not be so warm as yesterday. yesterday was the warm of the day in the forecast. we have cloud cover and notice for radar return and th